An evaluation method and device according to the purposes of a reusable battery are disclosed. The disclosed method comprises the steps of: obtaining state of health (SOH) information, state of balance (SOB) information, and state of power (SOP) information of a reusable battery; extracting evaluation parameters from the SOH information, the SOB information, and the SOP information; substituting the evaluation parameters into each of a plurality of evaluation models which are set differently according to use purposes of the reused battery; and calculating an evaluation result corresponding to the use purposes of the reused battery from the evaluation parameters by using the plurality of evaluation models, wherein the SOB information includes information on a correlation between the SOC and the SOB according to a change in a state of charge (SOC) of the reusable battery.
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2. The method of claim 1, wherein the plurality of evaluation models set the weight for each of the evaluation parameters based on information on a SOB tolerance section corresponding to a usage of the reusable battery, a use temperature of the reusable battery, and required power of the reusable battery.
3. The method of claim 2, wherein the evaluation results include evaluation results for a SOC available section according to the usage of the reusable battery that is determined based on the SOB tolerance section corresponding to the usage of the reusable battery, the use temperature of the reusable battery and the required power of the reusable battery, evaluation results for a use temperature tolerance section according to the usage of the reusable battery, and evaluation results for tolerant output according to the usage of the reusable battery.
4. The method of claim 3, wherein the evaluation results further include recommendation information on a usage suitable for the reusable battery among a predetermined plurality of usages.
6. The apparatus of claim 5, wherein the processor is further configured to perform a process of automatically outputting the evaluation results comprising a plurality of fields, the plurality of fields include a field for an evaluation grade of the reusable battery when applied to a corresponding usage, a field for a state of charge (SOC) range capable of operating the reusable battery in the corresponding usage, and a field for a tolerant output current of the reusable battery in the corresponding usage.
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August 24, 2023
June 11, 2024
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